Maxim > Products > Power and Battery Management > MAX608

MAX608

5V or Adjustable, Low-Voltage, Step-Up DC-DC Controller

1A Step-Up Converter Boosts 2V Inputs with High-Efficiency

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX608 low-voltage step-up controller operates from a 1.8V to 16.5V input voltage range. Pulse-frequency-modulation (PFM) control provides high efficiency at heavy loads, while using only 85µA (typical) when operating with no load. In addition, a logic-controlled shutdown mode reduces supply current to 2µA typical. The output voltage is factory-set at 5V or can be adjusted from 3V to 16.5V with an external resistor divider.

The MAX608 is ideal for two- and three-cell battery-powered systems. An operating frequency of up to 300kHz allows use with small surface-mount components.

The MAX608 operates in "bootstrapped" mode only (with the chip supply, OUT, connected to the DC-DC output). For a 12V output without external resistors, or for nonbootstrapped applications (chip supply connected to input voltage), refer to the pin-compatible MAX1771. The MAX608 is available in 8-pin DIP and SO packages.

Data Sheet

Download	Rev 0	(PDF, 152kB)
E-Mail

An evaluation kit is available: MAX608EVKIT

Key Features

1.8V to 16.5V Input Range
85% Efficiency for 30mA to 1.5A Load Currents
Up to 10W Output Power
110µA Max Supply Current
5µA Max Shutdown Current
Preset 5V or Adjustable Output (3V to 16.5V)
Current-Limited PFM Control Scheme
Up to 300kHz Switching Frequency
Evaluation Kit Available

Applications/Uses

Battery-Powered Applications
High-Efficiency DC-DC Converters
Portable Communicators
Positive LCD-Bias Generators

Key Specifications:

Step-Up Switching Regulators

Part Number

V_IN
(V)

V_OUT
(V)

Preset V_OUT
(V)

Max. I_OUT
(A)

Output Adjust. Method

DC-DC Outputs

Oper. Freq.
(kHz)

Package/Pins

Smallest Available Pckg.
(mm²)

Budgetary Price

min

max

min

max

≥

≤

max w/pins

See Notes

MAX608

1.8

16.5

Resistor

300

PDIP(N)/8

SOIC(N)/8

79.7

$1.99 @1k

See All Step-Up Switching Regulators (91)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Typical Operating Circuit

Notes and Comments

Like MAX1771 but accepts lower input voltages. Supports SEPIC Configuration

Didn't Find What You Need?

Next Day Product Selection Assistance from Applications Engineers
Parametric Search
Applications Help

Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-0438 Rev 0; 1995-09-01
This page last modified: 2007-05-30